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Theorem 6.1 prove it please it …

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Theorem 6.1 prove it please it is very important for me

Posted by Aastha Singh 7 years, 2 months ago

CBSE > Class 10 > Mathematics

6 answers

Animesh Pawar 7 years, 2 months ago

Hiiii

Aastha Singh 7 years, 2 months ago

Thank you ... Animesh for being sooo kind

Nav Jyoti 7 years, 2 months ago

Book mei dekho

Animesh Pawar 7 years, 2 months ago

And sorry diagram nhi bna skta

Animesh Pawar 7 years, 2 months ago

Given:-Tri. ABC where DE parallel BC To proov:- AD/DB AE/EC Proof :- area of tri. ADE= 1/2×base×height Area(Ade) =1/2×DB×EN Similarly area(BDE) = 1/2×DB×EN therefore area(ADE) =1/2×AD×EN/1/2×DB×EN =AD/DB - - - 1 NOW, In tri. ADE and tri. DEC Area(ADE) =1/2×AE×DM Area(DEC) =1/2×EC×DM Therefore, area(ADE)/area(DEC)=1/2×AE×DM/1/2×EC×DM =AE/EC - - - - - 2 Tri.BDE and tri.DEC are on same base DE and between the same parallel BC and DE Area(BDE)=area(DEC) - - - 3 Therefore, from equation 1,2 and 3 AD/DB=AE/EC hence proved

Aastha Singh 7 years, 2 months ago

Please .....tommorow is my maths exam

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